LifeSource ua-767 ユーザーズマニュアル

Using the correct cuff size is important for an accurate reading. 
A cuff that is too large will produce a reading that is lower than
the correct blood pressure; a cuff that is too small yields a 
measurement that is higher. With your arm hanging at the side 
of your body, measure the circumference of your upper arm 
at the midpoint between shoulder and elbow.

To attach cuff, insert air connector at end of cuff tube into 
air socket on left side of monitor. Should you need to change 
the cuff size, the preset exhaust velocity rate may have to 
be adjusted (see page 11).

AIR CONNECTOR

ARM SIZE

RECOMMENDED
CUFF SIZE

REPLACEMENT
CUFF MODEL#

5.1” - 7.9” (13-20cm)

7.5” - 12.2” (19-31cm)

11.8” - 17.7” (30-45cm)

Small

Medium

Large

UA-279

UA-280

UA-281

TUBE

You must install 4 type AA (1.5 volt) batteries and attach the 
cuff to the monitor before using it. To install batteries (or replace
them if the “Low Battery” symbol appears on display), proceed 
as follows: 

Remove battery compartment cover  
by gently pushing down on arrow and 
sliding cover forward. 

Put in top row of batteries first. Place 

the batteries in compartment with 
positive (+) and negative (–) terminals 
matching those indicated in the 
compartment. Be sure batteries make 
contact with compartment terminals.

Replace cover by sliding it into 

the compartment and gently pressing 
into place. 

LifeSource Blood Pressure Monitors are easy to use, accurate 
and digitally display full measurement readouts. Our technology
is based on the “oscillometric method” — a noninvasive blood 
pressure determination. The term “oscillation” refers to any 
measure of vibrations caused by the arterial pulse. The cuff is first
inflated until the artery is fully blocked. Then, the monitor takes
measurements while the cuff deflates. Our monitors examine the
pulsatile pressure generated by the arterial wall as it expands and
contracts against the cuff with each heartbeat.

AIR CONNECTOR

MONITOR